> ## Documentation Index
> Fetch the complete documentation index at: https://docs.llmeasy.ru/llms.txt
> Use this file to discover all available pages before exploring further.

# GPT-5.6 models are live

> GPT-5.6 models are now live, including gpt-5.6-luna, gpt-5.6-sol, and gpt-5.6-terra for Codex, external tools, and multi-step agent workflows.

Release date: July 10, 2026

LLMEasy now supports the GPT-5.6 model family. Check the <a href={"https://www.llmeasy.ru/pricing"}>model plaza</a> for currently available **GPT Key group** model IDs and live pricing, then use them in Codex, OpenCode, OpenClaw, Cursor, Cline, Zed, or other external tools through the OpenAI-compatible protocol.

The new model IDs are:

| Model ID        | Best for                                                                                                               |
| --------------- | ---------------------------------------------------------------------------------------------------------------------- |
| `gpt-5.6-sol`   | Complex reasoning, large codebases, multi-step agent tasks, and long-running coding workflows                          |
| `gpt-5.6-terra` | Everyday coding, interactive development, common agent tasks, and balanced capability and cost                         |
| `gpt-5.6-luna`  | Lighter tasks where speed and cost matter, such as batch assistance, quick Q\&A, simple rewrites, and small tool calls |

## Highlights

* **Three model tiers**: OpenAI positions GPT-5.6 Sol, Terra, and Luna for high-reasoning work, balanced everyday tasks, and lighter high-volume tasks
* **Better fit for coding agents**: OpenAI highlights improvements across coding-agent, terminal workflow, and tool-coordination tasks
* **Ready for external tools**: OpenAI Help Center confirms Sol, Terra, and Luna are available through the OpenAI API; in LLMEasy, use the **GPT Key group** and `https://www.llmeasy.ru/v1`
* **Choose by workload**: Start with `gpt-5.6-sol` for complex work, `gpt-5.6-terra` for daily development, and `gpt-5.6-luna` for lighter or cost-sensitive requests

## Setup guidance

For Codex or other OpenAI-compatible tools, follow the matching setup guide:

* **Base URL**: `https://www.llmeasy.ru/v1`
* **API Key group**: choose the **GPT Key group**
* **Model name**: copy the current model ID from the <a href={"https://www.llmeasy.ru/pricing"}>model plaza</a>

<Note>
  Do not hardcode a model name that is not shown in the model plaza. Model availability, pricing, and routing status follow the live <a href={"https://www.llmeasy.ru/pricing"}>model plaza</a>.
</Note>

## How to choose

If you are not sure where to start, choose by task complexity:

* Use `gpt-5.6-sol` for large codebase understanding, cross-file edits, test repair, long debugging loops, and agent tasks that need stronger reasoning
* Use `gpt-5.6-terra` for everyday coding, code explanation, routine refactors, documentation, and most interactive development tasks
* Use `gpt-5.6-luna` for lightweight Q\&A, batch assistance, simple text processing, low-latency tool calls, and high-volume cost-sensitive requests

## Official sources

* [GPT-5.6: Frontier intelligence that scales with your ambition](https://openai.com/index/gpt-5-6/)
* [GPT-5.6 in ChatGPT](https://help.openai.com/en/articles/20001354)
* [OpenAI's GPT-5.6 Sol, Terra, and Luna are now available in GitHub Copilot](https://github.blog/changelog/2026-07-09-openais-gpt-5-6-sol-terra-and-luna-are-now-available-in-github-copilot/)